The person who remembers to return borrowed time with consideration makes asking for help feel safer.

When someone gives you an hour, they have handed over something they cannot get back, and how you treat it decides what asking costs next time. Arriving prepared, finishing when you said you would, telling them afterwards what their help produced: these are the ways the hour gets honoured. Do it and they lend easily again.

If someone helped you recently, tell them what came of it in two sentences. Be on time for the next one, and end it early if you can.